Section 59(5)(a) in The New Delhi Municipal Council Act, 1994
(a)audit the accounts of expenditure from the revenue of the Council, expenditure on account of loan works and expenditure incurred out of special funds and shall ascertain whether moneys shown therein as have been disbursed were legally available for, and applicable to, the service or purpose to which they have been applied or charged, and whether the expenditure conforms to the authority which governs it;